. >>> a number >>> apple shares closed lower. that drop was triggered by a report of possible slowing sales in iphones and i pads. just seven months ago apple shares reached a record high closing above $700 per share. >>> and google showed better than expected results in their returns. profits and sales were both up. even so it's not making as much money on ads on mobile devices. advertisers don't see mobile ads as producer the same results compared to devices with larger screens such as laptop and desktop computers. >>> more than a dozen killed many still missing after a fertilizer plant explosion. >> how one local expert will be helping with the investigation into the fire and explosion in rural texas. >>> developing news, late word of gunfire and explosions in the boston area after that shooting on the campus of mit, we're working to bring you an update after the break. in to us from a boston station. we hear that police have a man surrounded but it's not clear if the two incidents are connected. >>> and the boston marathon bo